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Entanglement of nanophotonic quantum memory nodes in a telecom network

277
Citations
May 16, 2024
Published Date

Research Abstract & Technology Focus

AbstractA key challenge in realizing practical quantum networks for long-distance quantum communication involves robust entanglement between quantum memory nodes connected by fibre optical infrastructure1–3. Here we demonstrate a two-node quantum network composed of multi-qubit registers based on silicon-vacancy (SiV) centres in nanophotonic diamond cavities integrated with a telecommunication fibre network. Remote entanglement is generated by the cavity-enhanced interactions between the electron spin qubits of the SiVs and optical photons. Serial, heralded spin-photon entangling gate operations with time-bin qubits are used for robust entanglement of separated nodes. Long-lived nuclear spin qubits are used to provide second-long entanglement storage and integrated error detection. By integrating efficient bidirectional quantum frequency conversion of photonic communication qubits to telecommunication frequencies (1,350 nm), we demonstrate the entanglement of two nuclear spin memories through 40 km spools of low-loss fibre and a 35-km long fibre loop deployed in the Boston area urban environment, representing an enabling step towards practical quantum repeaters and large-scale quantum networks.
entanglement nanophotonic quantum memory nodes telecom
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Frequently Asked Questions (FAQ)

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What is the core focus of the research titled 'Entanglement of nanophotonic quantum memory nodes in a telecom network'?

This literature focuses on: AbstractA key challenge in realizing practical quantum networks for long-distance quantum communication involves robust entanglement between quantum memory nodes connected by fibre optical infrastructure1–3. Here we demonstrate a two-node quantum ...

Are there open-source GitHub repositories related to Entanglement of nanophotonic quantum memory nodes in a telecom network?

Yes, open-source projects like QuipNetwork/xq-rs (A rust implementation of the Quip Network's quantum virtual machine.) are actively building upon these concepts.

What other academic literature is closely related to 'Entanglement of nanophotonic quantum memory nodes in a telecom network'?

Yes, highly correlated activity was mapped. An entry titled 'Entanglement of nanophotonic quantum memory nodes in a telecom network' discusses this: AbstractA key challenge in realizing practical quantum networks for long-distance quantum communication involves robust entanglement between quantu...

Are there commercial applications of 'Entanglement of nanophotonic quantum memory nodes in a telecom network' in market news publications?

Yes, highly correlated activity was mapped. An entry titled 'Network Architecture' discusses this: Network architecture is rapidly evolving with a focus on quantum security, exemplified by Cisco's "full-stack post-quantum cryptography" and increa...

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Commercial Realization

Startups and Open Source tools heavily associated with the concepts explored in this paper.

  • GitHub
    QuipNetwork/xq-rs
    A rust implementation of the Quip Network's quantum virtual machine.
  • GitHub
    QuipNetwork/xq-py
    A python implementation of the Quip Network's quantum virtual machine

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